Commercial Building Permit in Kuna, Idaho
Required for new commercial structures, tenant improvements, change of occupancy, rooftop unit additions/replacements, fencing, and accessory structures over 120 square feet. Commercial submittals must be stamped by a licensed design professional. Civil plans require Public Works approval before submitting to the Building Department. Submit application and individual PDFs to CommercialPermits@KunaID.gov; construction plans (24x36) and engineering/structural calcs via Dropbox. Kuna Fire Department review is required and is a separate process.
Verified 2026-06-29 · Source
When you need this permit
- Commercial building permit required for new commercial structures, tenant improvements, change of occupancy, rooftop unit additions/replacements, fencing, and accessory structures over 120 sq ft
- Submit application and individual PDFs to CommercialPermits@KunaID.gov (see Forms & Applications page for full list)
- Commercial submittals (Building Permit Application, contractor's bid document with scope of work on company letterhead, site plan, floor plan, plumbing fixture count) required
- Electrical, Plumbing, and Mechanical costs must be listed as separate line items — not included in contractor's construction cost
- Engineering/structural calculations required, stamped by Idaho licensed design professional
- Construction plans (24x36) must reference IBC 2018 and include Electrical, Mechanical, Plumbing, and Civil Site Plan sheets
- Civil plans reviewed separately by Public Works Department; must be approved before Building Department review
- Kuna Fire will assess project for impact fee and conduct life safety plan review (kunafire.com/permits-applications); fire impact fee paid as part of building permit
- ACHD (Ada County Highway District) impact fee review is a separate process; payment receipt required before permit is issued
- Four different inspector reviews required prior to permit fee processing for Commercial/Tenant Improvements
- Payment of submittal fees (including plumbing review fee, electrical review fee, and $200 submittal fee) required before plan review begins
Required documents
- Req
Commercial Building Permit Application (PDF)
Fillable application; all lines must be completed. Updated January 2025. Available at kunacity.id.gov/DocumentCenter/View/9472
- Req
Contractor's Bid Document (scope of work on company letterhead)
Must include license number, address, and contact information; electrical, plumbing, and mechanical costs listed as separate line items
- Req
Site Plan (individual PDF page)
If applicable, include irrigated landscape square footage on site plan
- Req
Floor Plan (individual PDF page)
Individual floor plan showing layout
- Req
Plumbing Fixture Count (8.5x11)
One table with quantities
- Req
Engineering/Structural Calculations (stamped PDF)
Must be stamped by Idaho licensed design professional
- Req
Construction Plans (24x36 PDF)
Single PDF including Electrical, Mechanical, Plumbing, and Civil Site Plan sheets, referencing IBC 2018; submitted via Dropbox
- Req
Kuna Fire Payment Certification and Impact Fee Certification
Required before permit pickup; obtained through separate Kuna Fire application at kunafire.com/permits-applications
- Req
ACHD Impact Fee Payment Receipt
Required before permit pickup; ACHD review is done separately
Fee schedule
| Fee type | Amount | Notes |
|---|---|---|
| Commercial Building Permit Submittal Fee | $200 | Resolution R74-2023A |
| Commercial Structural/Mechanical Plan Review Fee | $150 per hour, 1-hour minimum | Resolution R09-2025 |
| Commercial Plumbing Plan Review Fee (up to 10,000 sq ft) | $200 | Resolution R09-2025 |
| Commercial Plumbing Plan Review Fee (10,001–100,000 sq ft) | $400 | Resolution R09-2025 |
| Commercial Electrical Plan Review Fee (up to 10,000 sq ft) | $200 | Resolution R09-2025 |
| Building Permit Fee (project value $1–$2,000) | $65 | Same project-value table as residential; Resolution R74-2023A |
| Building Permit Fee (project value $2,001–$25,000) | $65 for first $2,000 + $11.35 per additional $1,000 or fraction thereof | Resolution R74-2023A |
| Change of Occupancy | $100 (includes inspection) | Resolution R09-2025 |
| Temporary Certificate of Occupancy | $40 | |
| Building Permit Modification | $100 | Resolution R74-2023A |
| Re-inspection Fee | $65 each (after each failed attempt) | Resolution R57-2021 |
| Reinstatement Fee: Commercial | $150 |
Review timeline
~15–45 business days
Typical estimate — confirm current times with the Kuna building department
Inspection process
- 1
Foundation/Slab
Inspection of foundation prior to concrete pour
- 2
Framing/Rough-In
Structural framing, rough-in mechanical, electrical, and plumbing
- 3
Fire/Life Safety
Kuna Fire review for life safety compliance (separate from Building Department inspections)
- 4
Final
Final inspection of completed project for Certificate of Occupancy
Tips
- Commercial and Tenant Improvement submittals MUST be stamped by a design professional
- Civil plans are reviewed separately by the Public Works Department and must be approved before submitting to the Building Department
- Kuna Fire review and payment certification are separate processes — plan for additional processing time
- ACHD impact fee review is also a separate process; have that payment receipt in hand before expecting to pick up your permit
- Electrical, plumbing, and mechanical costs must be listed as separate line items in the contractor's bid — not folded into the general construction cost
Frequently asked questions
- Is a commercial building permit required for a tenant improvement?
- Yes. A commercial building permit is required if you plan to finish or remodel an existing building shell as a tenant improvement. Commercial submittals must be stamped by a licensed design professional.
Sources & verification
Verified against official sources. Last reviewed 2026-06-29.
- City of Kuna Building Department — official building department
- Kuna Building Department — Commercial Building Information
- Kuna Building Department Fee Schedule (PDF)
- Kuna Forms & Applications — Submittal Instructions
Fees, timelines, and adopted codes are researched from each jurisdiction's published records — see how we verify. Requirements change and vary by project, so always confirm the current details with the Kuna building department before you submit. PermitBase is an independent reference and is not affiliated with any government agency.
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